What are the four conditions needed to see an object?

The four conditions to see an object are, source of light, object,eye and brain.

Explanation:

Four conditions necessary to see an object;

1. You need a light to be able to see an object. We need source of light which emit light and is reflected by the object.

2. An object must be able to reflect the light for it to be seen.

3. The eyes. It serve as a screen where the image is formed. The retina focus and receives the light Ray reflected by the object.

4. The brain processes it and interpret what was reflected so that we can identify and we can see.

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